Wow, I was glad to finally get one, its a very popular item, huge surface area for beneficial bacteria to grow on, an easy fix thanks to the easy to follow youtube videos that Cory does.
After waiting for a very long time to be able to get my hands on one of these I purchased this a couple of weeks ago. This is hands down the best intake sponge ever!
Do not leave that intake naked! Increase your biological capacity through increased surface area! Protect delicate fins, small fish, snails, and shrimp from death by impeller! Protect the inner workings of your power filter from clogging with insidious sand, detritus and plant leaves! All the cool kids have one! You need one too!
Fish keeping isn't the same with these large intake sponges. The most important part of my filtration system. They work amazing in the Aquaclear 70's and 110's I use on all my tanks. They provide more surface area and really help keep my filters from getting clogged with plant matter.
I'm very happy with the intake sponges. I use them with my 2 Marineland 400 external filters.
Water is much cleaner & don't clog as easy.